CODEWITHSUNDEEP
php
atoms
atoms

Reputation: 3093

Performance of $_SERVER['DOCUMENT_ROOT'], or define("SITE_ROOT", ""]);

I need to store the document root to be used across my application

I have two options, would someone please mind explaining what would be quicker and why? Or indeed if there is a better way to achieve this.

define("SITE_ROOT", "/"]);

$_SERVER['DOCUMENT_ROOT']."/path/to/file"

so an include would be created as;

require(SITE_ROOT.'/path/to/file');
require($_SERVER['DOCUMENT_ROOT']."/path/to/file");

Upvotes: 0

Views: 262

Answers (2)

Rizier123
Rizier123

Reputation: 59701

To use:

define("SITE_ROOT", "/");  //Typo removed

Is a just a little little bit faster than:

$_SERVER['DOCUMENT_ROOT'] . "/path/to/file"

Since you always concatenate something, is the constant a bit faster. But I think this falls under micro management and I don't think that this is your biggest performance issue in your code.

Even if this would be your "biggest performance issue", even then I would say the difference is so small you can decide, what you want to use and what you think is more readable.

Upvotes: 1

Muhammet
Muhammet

Reputation: 3308

AFAIK there shouldn't be any performance difference (You shouldn't be worrying about this kind of stuff), but this seems way cleaner, readable and especially easier to type:

require(SITE_ROOT.'/path/to/file');

than

require($_SERVER['DOCUMENT_ROOT']."/path/to/file");

Upvotes: 1

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